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The Range£65.83Visit shop Unifix Steel Shouldered Thumbscrews Bzp M8 X 25 - Retail Pack - Box Of 200 - Grey
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The Unifix Shouldered Thumbscrew (M8 x 25, Silver) is designed for DIY enthusiasts and professionals seeking a reliable, tool-free fastening solution that balances structural strength with ease of installation. These screws feature a bright zinc-plated finish for corrosion resistance, making them ideal for assembly projects that require frequent adjustments or rapid manual removal. While these thumbscrews offer excellent versatility, users should note that they are intended for manual tightening, meaning they are not suitable for high-torque applications requiring heavy-duty mechanical drivers.
| Colour | Silver |
|---|---|
| Model Part Number | 1261524 |
| Brand | Unifix |
While the bright zinc plating provides protection against corrosion, these are primarily intended for indoor workshop or light industrial use.
These thumbscrews are specifically designed for tool-free installation and should be tightened by hand.
No, these are general-purpose fasteners and should not be used for critical structural load-bearing applications.
The shoulder provides a flat bearing surface that stops the screw at a specific point, ensuring a secure and stable fit against the component being fastened.
Yes, provided the thread diameter and pitch match, and the M8 x 25 size meets the required length for your application.
Check the threaded hole for burrs, debris, or mismatched pitch; ensure you are not cross-threading.
Verify that the receiving hole is M8 and that the shoulder is fully seated against the surface; avoid over-tightening which may strip threads.
For optimal results, ensure the receiving thread is clean and free of debris or paint buildup before installation. To install, simply align the fastener with the threaded hole and rotate clockwise until the shoulder is seated firmly against the mounting surface. To prevent cross-threading, always initiate the thread by hand before fully tightening. For maintenance, keep the screws dry and store them in their provided retail packaging to prevent surface scratches and keep them accessible for future projects. If you notice signs of corrosion, apply a thin coat of machine oil to the threads.
